Target heart rate (220-age x .50 to 850)

Answer 1

It looks like you're trying to calculate the target heart rate for exercise using a formula based on age. The formula for determining the target heart rate zone typically involves the following steps:

1. Calculate your maximum heart rate (MHR): $$\text{MHR}=220-\text{age}$$

2. Determine your target heart rate zone: Generally, the target heart rate zone for moderate-intensity exercise is 50% to 70% of your maximum heart rate. For vigorous intensity, it can be 70% to 85%.

Using the MHR from the first step:

• 50% of MHR: $$\text{Target HR (50\%)}=\text{MHR}\times 0.50$$

• 70% of MHR: $$\text{Target HR (70\%)}=\text{MHR}\times 0.70$$

So, the target heart rate range can be calculated as: $$\text{Target HR Range}=[\text{MHR}\times 0.50,\text{MHR}\times 0.70]$$

For example, if you are 30 years old:

1. Calculate MHR: $$\text{MHR}=220-30=190$$
2. Calculate target heart rate range: $$\text{Target HR (50\%)}=190\times 0.50=95$$ $$\text{Target HR (70\%)}=190\times 0.70=133$$

Therefore, the target heart rate range for a 30-year-old would be approximately 95 to 133 beats per minute.

If you would like to calculate this for a specific age, just let me know!